Printing-press.



No. 662,934. Patented Dec. 4, I900. H. HARTT.

PRINTING PRESS.

(Application filed Dec. 23, 1899.)

3 Sheets-Sheet I.

qwm. KM

TNE Nbnms PETERS 1:0,, Pumo-u'ma. wAsmucrrou. m c.

Patented Dec. 4, I900.

H. HARTT.

PRINTING PRESS. (Applicatiop filed Dec. 23, 1899.!

3 Sheets- Sheet 3.

(No Model.)

v wk No'nms PETERS 120.. PHOTD-L Hdd, WASHINGTON. u. c.

. :NITED STATES PATENT OFFICE.

HENRY HARTT, OF CHICAGO, ILLINOIS.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 662,934, dated December4, 1900.

T0 0% whom it may concern:

Be it known that I, HENRY HARTT, a citizen of the United States ofAmerica, and a resident of Chicago, county of Cook, State of Illinois,have inventedccertain new and useful Improvements in Printing-Presses,of which the following is a specification.

My invention relates to printing-presses, and has for its object animprovement in arrangement of devices for making the longitudinal foldsin webs where two or more webs are united and folded together.

Presses for many-paged papers are now ordinarily made so as to combine anumber of presses in one machine. Each of these presses prints upon oneweb of paper, and the difierent webs are assembled in proper order asthey pass from the printing-rolls. The assembled and superimposedWebsthen pass.

over a former which gives them a longitudinal fold with one web insideof another. The longitudinally-folded webs then pass to thecuttingcylinders and folder in the manner which is well known.

It has been found by experience that where a series of superimposed webspass over a former the paper cramps, wrinkles, ofisets, smuts, and oftentears as a result of running over the corners. It is well known,however, that a single web will pass overa former without any troublewhatever. I take advantage of this latter fact to overcome thepreviously-mentioned difficulty by making the longitudinal fold of eachweb separately and in such a manner that the webs are inserted onewithin the other in their proper order before they pass to thecutting-cylinders. The arrangement of parts by which this result may beaccomplished on a threetiered press is shown in the accompanyingdrawings, in which Figure 1 is a plan of such a press. Fig. 2 is a sideelevation, one side frame being removed. Fig. 3 is an elevation of thedelivery end of the press,.and Fig. 4 is a section on line 4: 4 of Fig.2.

In the said drawings, A represents the rolls of paper, B the webs, and Cthe printing-cylinders for each web. For each web I provide a separateformer F, and I place these formers one over another, so that a lowerformer is within the V shape of a web passing down from an upper former.It follows from running webs over formers so placed that the web fromthe lower former is inserted within the web from'the upper formerpresses and run over corresponding formers can, when the formers arearranged in the manner described, be regularly inserted one withinanother without encountering the difficulty of cramping, wrinkling, andtea-ring hereinbefore mentioned.

The herein-described process of folding webs and inserting them onewithin another is not. herein claimed, but forms the subjectmatter of aseparate application filed by me February 9,1900, and given serialnumber What I claim is- 1. The combination with a series of presses andcommon cutting-cylinders therefor, of a former for each press, saidformers being disposed with their apexes in a line parallel with theinitial direction of movementof webs when passing from said formers tothe cutting-cylinders.

2. The combination with a press or presses adapted to deliver two ormore printed webs which are required to be folded together, of devicesfor giving each web independently a longitudinal fold, means for causingsuch longitudinally-folded webs to be fully inserted one within another,and cutting-cylinders to which such longitudinally-folded andfullyinserted webs pass.

Signed by me at Chicago, Illinois, this 21st day of December, 1899.

HENRY HARTT.

Witnesses:

R. E. SNALE, C. L. REDFIELD.

